.sk_warrper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.sk_chase {
    width: 80px;
    height: 80px;
    position: relative;
    border: 8px solid #F5F5F5;
    border-left: 8px solid #165DFF;
    border-radius: 50%;
    -webkit-animation: sk_chase 1.1s infinite linear;
    animation: sk_chase 1.1s infinite linear;
}





@-webkit-keyframes sk_chase {

    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);

    }
}

@keyframes sk_chase {


    from {
        transform: rotate(0deg);
        //以右下角为中心轴旋转

    }

    to {
        transform: rotate(360deg);

    }
}